alizain/ulid port to Golang (binary format implemented).
Check out ULID's README.
Important: this repository has been archived. Please use oklog/ulid implementation.
I ported it to see how fast would be the same algorithm in Go. Also, it is cryptographically secure using crypto/rand.
go get github.com/imdario/go-ulid
import (
"github.com/imdario/go-ulid"
)
// ...
u := ulid.New()
On a Intel Core 2 Duo 6600 @ 2.40 GHz, Windows 10 and Go 1.6.3:
BenchmarkULID-2 1000000 1029 ns/op 16 B/op 1 allocs/op
BenchmarkEncodedULID-2 1000000 1249 ns/op 48 B/op 2 allocs/op
BenchmarkSingleEncodedULID-2 10000000 206 ns/op 32 B/op 1 allocs/op
Approx. 800.640 op/s, 46 times faster than Javascript original implementation.
Using google/uuid:
BenchmarkUUID-2 1000000 1041 ns/op 16 B/op 1 allocs/op
BenchmarkEncodedUUID-2 1000000 1407 ns/op 64 B/op 2 allocs/op
BenchmarkSingleEncodedUUID-2 5000000 302 ns/op 48 B/op 1 allocs/op
go-ulid is about 12% faster than Google's UUID!